From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-102.mailbox.org (mout-p-102.mailbox.org [80.241.56.152]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AB853175A6E; Mon, 2 Mar 2026 21:35:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.152 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772487349; cv=none; b=nYLisd3Vkf3zC/Vu1QdCzsBogNEJ9wgnq414Ifvsf3uELZ53AqKazr9PXmyzch7VcBlRrcEkNlOMewPm+f+YG8Kxo0axQ2htJ6LIanSzOR47Q7R3UbUFma6K+f3620tqloy+0/563ztSgIgvi1RM8C49USmZyfVO/M6mUxptKow= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772487349; c=relaxed/simple; bh=MXrnbhwOtZ1tGNCzYX4BW2BB/uWvHFbq7kaPs9bC5uY=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=SgeJWXSB0jb5i25NbQLv90Sh+LLVbFlNY2egCoZlgBz+9aHYhx+hxSJeBWV3ZQFsxv9Tn6S2C/PIzkKF7aN83eVpDCg3ciYiI7Gmr90KLkLMs/fqXk+ytwVvtdJTlxe74/nBkO6hdCHBlyCFMD5NJmziS9x9HLKRat6VWAOZtsE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=Dfz5DyTB; arc=none smtp.client-ip=80.241.56.152 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="Dfz5DyTB" Received: from smtp1.mailbox.org (smtp1.mailbox.org [IPv6:2001:67c:2050:b231:465::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-102.mailbox.org (Postfix) with ESMTPS id 4fPsfy5NNCz9smr; Mon, 2 Mar 2026 22:35:38 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1772487339; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4NIL6uWapbdqpgG2p/sw1LyDcO+MB0fwXIJZ+3kK7fM=; b=Dfz5DyTB1FJq7VJSjg7agABbEOTueivJOUnVhKT9L3mn1zdf1G7UeV+uZlfH0YDVTpkzht 4QNaZRCZp8Ia0CWWtIzE/AJt4zLSmPdLYDrfcQazk6RuUJdckEASwDRr6tvZAOpO7zoq4T 80JYUhSZzoyw7RM9RINEHI9bqNvp2L2vnBOvqDyc/H0zz0PRG/QMQdSGsDtP7QqWduJCry EggVpojN17RR5eu1w7gebHGJJsmSj5BLSjf7H165qevABqb0+pdtcRH9UiriHZ6waTPPtT J7vN+zOLvri/dcVcHcDk0PUJDQo7N/a4WkpqXwuAvlFfltd5xg09OLRtvH+ylA== Message-ID: Date: Mon, 2 Mar 2026 22:35:31 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH v2 2/2] drm/bridge: waveshare-dsi: Add support for 1..4 DSI data lanes From: Marek Vasut To: dri-devel@lists.freedesktop.org Cc: Joseph Guo , Andrzej Hajda , Conor Dooley , David Airlie , Jernej Skrabec , Jonas Karlman , Krzysztof Kozlowski , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Neil Armstrong , Rob Herring , Robert Foss , Simona Vetter , Thomas Zimmermann , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Luca Ceresoli References: <20260115024004.660986-1-marek.vasut+renesas@mailbox.org> <20260115024004.660986-2-marek.vasut+renesas@mailbox.org> <3af09657-78ce-4bc6-b8d5-b346a3b86c5b@mailbox.org> Content-Language: en-US In-Reply-To: <3af09657-78ce-4bc6-b8d5-b346a3b86c5b@mailbox.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-MBO-RS-META: dkqf49gjzjuakfhs31ap9sy1mc6uzb4y X-MBO-RS-ID: 06d59b41ff50c3666a5 On 2/6/26 12:48 PM, Marek Vasut wrote: > On 1/15/26 3:39 AM, Marek Vasut wrote: >> Parse the data lane count out of DT. Limit the supported data lanes >> to 1..4 which is the maximum available DSI pairs on the connector of >> any known panels which may use this bridge. Internally, this bridge >> is an ChipOne ICN6211 which loads its register configuration from a >> dedicated storage and its I2C does not seem to be accessible. The >> ICN6211 also supports up to 4 DSI lanes, so this is a hard limit. >> >> To avoid any breakage on old DTs where the parsing of data lanes from >> DT may fail, fall back to the original hard-coded value of 2 lanes and >> warn user. >> >> The lane configuration is preconfigured in the bridge for each of the >> WaveShare panels. The 13.3" DSI panel works with 4-lane configuration, >> others seem to use 2-lane configuration. This is a hardware property, >> so the actual count should come from DT. >> >> Reviewed-by: Joseph Guo >> Signed-off-by: Marek Vasut > > Is it OK to apply these two patches now ? Can this be applied now ?